Coal-mining machine



UNITED STATES PATENT OEEICE.

CHARLES L. DRIESSLEIN, OF MAYWOOD, ILLINOIS.

COAL-MINING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 245,798, dated August16, 1881.

Application tiled January `3, 1881. (No model.)

To all whom it may concern Beit known thatl, CHARLES L. DRIEssLEIN, ofMaywood, in the county of Cook and State of Illinois, haveinventedcertain new and useful Improvements in Machines forllIiningGoal; and Idohereby declarethat thefollowing specication, with the drawings referredto therein, constitute a full, clear, exact, and sufficient descriptionof my said invention and the mode in which I contemplate itsapplication.

The nature of my invention consists in a certain construct-ion,combination, and arrangement ot parts whereby the mining-machines forwhich I received Letters Patent of the United States No. 136,712, datedMarch 11, 1873, and No. 187,752, dated February 27,1877, are greatlyimproved, and made capable of cutting a much deeper channel in strata otcoal than I have been able heretofore to accomplish.

Heretofore coal-mining machines have been provided with an endless bandcarrying out ters, and said band has been made to pass around the end ofan arm mounted upon a turn-table secured to a carriage and advancedthereby. The centra-l shaft of pump and tireengine reels has also beenmade hollow for water to circulate therethrough from the source ofsupply to the end of the hose. Therefore my invention does not consist,broadly, in such devices; but it will be hereinafter described inconnection with the drawings, and then pointed out in the claims.

Figure l represents a top view of the machine. Fi g.2 represents a sideelevation ot' the same, with the cutting-chain removed. Fig. 3represents a vertical section ot' the hose-reel. Fig. 4 represents atopView of theknife-holder. Fig. 5 represents an end view of theknifeholder, showing the socketfor holding the knife or cutter, and alsothe groove in its base.

The respective letters in the ditt'erent figures relate to the same partof the machine, in which- A represents a portable frame, resting uponwheels a, which run on a track. This frame A has attached to it on itstop, and supports, a turn-table, b, made in any well-known manner, andon this turn-table rests the frame C, having an upper, c, and a lower,c', iiooring. In this frame C is hung the chainwheel D,

which has attached to its uppersurfacea gearwheel, d, whose cogs receivethe teeth ot' the connecting gear-wheel E, which gear-wheel is uponshaft F, and attached to shat't F are the pistons G, entering intocylinders H. Said gear-wheel E and cylinders, with their accompanyingparts, are above and supported on the upper ooring, c, of the 4frame Cby suitable' supports, and areimmediately above the chain- -wheelD., Anopen place in the upper tiooring,

c, permits ofthe meshing ot' the gear-wheels E and d. The chainwheel Dis supported by suitable bearings. The chain-wheel D has on its outeredge a raised rail, d', which rail supports and assistsin keeping thecutting-chain in place around the edge ot' the chain-wheel.

Attached to the upper Hoor-ing, c, of the frame C is an extension-jib,J, for extending the cut ting chain into the channel being cut by thecuttingchain. It is attached in such a manner that by means ofset-screws j this extension-jib may be extended slightly, so asto maketant the cutting-chain when necessary. The extreme end ot' thisextensionb carries and terminates in a small wheel, L, which, as thecuttingchain passes around it, facilitates the movement of thecutting-chain. This extensionjib has also on its edge a raised rail, d',which supports and assists in keeping the cutting-chain in place on theedge ot' the extensioiljib. As the extension-jin is fastened to frame@`above the chain-wheel D, and as itis necessary that the raised rail d onthe edge of the chain-wheel D and on the edge of the extension-jibJshould be on a direct line, so as to carry the cutting-chain in astraight line, the outer part of the eXtension-jibis brought to thesaine plane with the chain-wheel by bending sadjib at right angles toitself' in two places, thereby producing a step, as it were, in saidextensionjib,such step being immediately outside ofthe frame U, as shownin Fig. 2 at P.

The cutting or channeling of the coal is accomplished by means of therevolving of an endless chain, having knife-holders Kattached to thelinks of the chain, said holders being furnished with sockets Zfor thereception ot the knives or cutters S. Said cutting-chain rests `on theperiphery ot' the chain-wheel D, and extends thence around the edge ot'the extension-jib J: The links of this chain are made ot' iron or steelwire of suitable strength,bent

into an oblong loop, one end of the loop being made a little narrowerthan the other end, and this narrower end is curved upward, therebyforming a hook, and this hook hooks into the wider end of the loop ofthe next link in the chain. On these wire links the cutter-holders K arecast, preferably of malleable iron,in such mannerthat the wire links areembedded in the casting, yet extending ont beyond the casting on eachside. The top ot'this cutter-holder Khas an openingor aperture, l,similar in shape to the shank of the knife or cutter S, (which cuttersare more fully described in Letters Patent No.

187,752,) which cutters may be inserted in the `reel for carrying aportion ofthe hose used in conveying the compressed airfrom thestationary pipes introduced into the mine to the cylinders' of themining-machine. This reel is made with a hollow axle, M, said axle,having a nozzle, N, on its surface for the attachment of the hose comingtrom the stationary pipes, and which nozzle forms the entrance-passagefor the compressed l.tir into the hollow axle, and pipes O, placed ineach end of this hollow axleand forming a palt ot' the axle, with theirinner ends open and their outer ends having a nozzle for the attachmentof the hose conveying the compressed aitdirect to the cylinders, furnishthe exit-passages from the hollow cylinder, which pipes O form thetrunnions or axles upon which said reel, with its hollow axle, rests inits bearings and supports. Pipes O are inserted in the hollow axle M bysuitable bushing, permitting said hollow axle to revolve on the innerends of the pipes O, which pipes rest stationary in their bearings.rllhis hose-reel, with its supports, can be made to swing out of the wayon pivot lt when it is desired to withdraw the extension-jlb from thecoal and place it on the carriage. It is obvious that bythe use of thisreel only so much hose will need to beunreeled as is the distance of themining -machine from the stationary pipes to which said hose isattached, and the compressed air passes from the stationary pipesthrough the hose into the hollow axle, and thence through the pipes 0forming the Vtrnnnions or axle of the reel to the shorter hose,conveying it to the cylinders.

It may be desirable in using this machine to place it on a track, and bymeans of cogs, screw, friction, or other well-known gearing attachedthereto, to press it forward and hold the cutting-chain to its work,instead of coutrolling its cut simply by hand.

It is evident that by the admission of compressed air or other motorinto the cylinders H through suitable pipe and hose, the piston G willbe set in motion and communicate motion to the shaft F, revolving thegear-wheel E, which, gearing into the gear-wheel d, will produce therevolving of the chain-wheel D, which will carry around with it thecuttingchain.

One of the advantages of my mining-machine is that it is so arrangedthat the frame C, to which the extension-jib J is attached,can be turnedby a lever or otherl appliance on the turn-table b, so as to bring theextension-jib parallel with the track on which the machine is placeduntil such time as the cutting-chain cuts a channel in the coal topermit of the extension-jib and its attendant cutting-chain to enterthecoal, and when the machineisfairly at work the extension-jib willstand at right angles to the track. Consequently7 the machine willoccupy but little more space when the extension-jib is not inserted inthe coal than it does when the extension-jib is inserted.

Another advantage my mining-machine has is that when the cuttingchainmeets with an obstruction inthe coal the forward pressure of theeXtension-jib can be eased up by partially turning of the machine on theturn-table without stopping the revolving motion of the cutting-chainuntil such obstruction is passed.

Having thus described my said improvements, what I claim as myinvention, and desire to secure by Letters Patent, is-

l. The combination ot' the chain-wheel l), having upon its periphery acentral'projecting band, d', with cutter-holders K, having socket l,groove Z in the inner side thereof, and wire chain-links passing throughsaid holders, and independent cutting-tool S, substantially asdescribed.

2. The combination ot' the frame C, having an upper and lower flooring,c c', and chainwheel D, placed between them, with extension-jib J,having the stepPand slotted plates at its inner end, andadjusting-screws j, attached to said frame C, substantially as shown anddescribed.

3. The combination ot' two oscillating cylin ders, H, and double-crankshaft F, with gear wheel E, secured upon said crank-shaft,crowngear-wheel d meshing therewith, and chainwheel D, substantially as andfor the purpose described.

4. The combination ot the frame C and cylinders H thereon with thehollow hose-reel, having each end connected by a pipe with saidcylinders, and a pipe-coupling, N, between said ends, substantially asand for the purpose described.

GHAS. L. DRIESSLEIN.

Witnesses:

J As. F. LARDNER, N. FR. HANSEN.

IOS

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